Improvement in ruling-machines



JAMESSTWART, or WASHINGTON, DISTRICT or COLUMBIA.

`Leers lPanini Nq. 109,2z, dated November 15, 1870.'

,` IMPROVEMENT iN RULl-G-MACHINES.

'I'. ',Thechedule referred to in these Lette 'To all ywhom. it muy concern Be it; known thatd, .Lunes S'rnwan'r, of Washing,

. ton city, `Distriet oi' Uolumbia, have inrentedeert-ain new and useful 4Improveniente in Devices'for Ruling Paper; and I herehydeolare the following to be a full, `true, and exaei; description of' the same, reference being had to fheaeeompanying drawingT and theletters ot' reference marked thereon.

To enable others skilled in the art. to which my invention appertains to make and use the same, I will new proceed to describe its construction and operation. Figure 1 is a perspective View of my device, and

` Figure 2 represent-s a part of a rnlingmiachine, to

which my improvement is attached.

Letter A represents the extension hars, by means oi' which therod D is secured. to the machine.

The roar ends of these hars are fastened or clamped to the pen-beam F of the machine in any suitable manuel', while the front endsextend outward, andare so shaped or formed that the thumbfscrews B are held securely in place.

Ilxtendin'g upward through both the thumb-screws' and the ends of' the extension bars are the screw-rods G, hy means of which the long rod D is lowered and raised at pleasure.

lhe rod D consist-s of' a straight bar of iron or :je Patent: ahdmaking part af the same.

heavy wire, and passes through the lower ends of the screw-rods C, and serves the double purpose of press` ing the peus G upon the paper and of prevent-ing the ends oi' the paper from curling upward.

The extension bars A should he slightly elastic, so as to allow the pens to give in case of meeting with any obstruction.

. Pivoted over the top of theV ruling-machine is a clamp, F, which holds the pens G.

Attached to the top of this Clamp there is a long slab or har, H, governed by the thumb-screws I.

.The rear ends of the extension bars are clamped between the pieces F andH, while the fro nt ones holding the screw-rods 0,-exteud outward overV the pens G, and press the rod D upon them with any del sired degree of pressure. Having thus described my invention, What I claim a-s new, and desire to secure byLetf ters Patent, isy The combination of the extension bars A, thumbsel'ews B, screw-rods C, and rod D, when all arearranged to operate substantially as described.

JAMES STEWART. Witnesses:

F. A. LEHMANN, THos. S. MERCER. 

